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Tombstoning thiab off-set yog cov kabmob uas fej tso ceeb hauv thaum ua kom muaj cov khoom siv hluav taws. Lawv tuaj yeem ua rau cov khoom lag luam muaj kabmob, ua tsis zoo, thiab lwm yam khoom tsawg zoo hauv cov khoom siv hluav taws. Tab sis zoo li ntawd, nrog rau kev pab hauv kev ua haujlwm ua ntu, nws tseem ceeb nrog kev pab ntawm kev ua haujlwm zoo thiab lossis kev ua haujlwm xws li automated optical inspection thiab tiv thaiv kev lag luam thiab lossis tombstoning los ntawm PCB assembly.
Cov khoom siv hluav taws uas muaj tombstoning thiab toeing yog dab tsi
Tombstoning (ferrous tombstoning, lub rooj ceev ntawm lub teeb) Lub teeb pom zoo tsawg heev ntawm lub khw (resistor lossis capacitor) saws ntawm nruab, ib sab ntawm lub khw yog tswj, lwm sab nrog tawg, nws ua haujlwm xws li lub rooj tog. Ntawd paws thaum ob lub solder pads rau ib ob pib ntawm lub khw tau hla tsis tshwj xeeb, thiab nws ua rau lub khw nqaj kom nws nyob tsis nyob qhov chaw. Misalignment yog thaum ib qho tsis nyob rau hauv PCB hauv qab tshuab tshuab. Tombstoning thiab misalignment ob peb yuav ua rau muaj kev ploj hmoo thiab kev nyuaj rau hauv lub tshuab hlau.
Kev tso cai rau AOI rau tombstoning thiab misalignment pom
Kev saib xyuas tshuaj ntsuas (AOI) yog ib qho kev tshuaj ntsuas siv los pab cov neeg tsim khoom thiab cov neeg muag khoom ua kev saib xyuas thiab test. Cov khoom siv tshuaj ntsuas AOI yooj zoo saib pom cov nta ntawv thiab cov khoom siv tsis ncaj ncees vim lawv siv cov duab ntawm cov khoom siv hauv PCB. Cov duab ntawm cov khoom siv hauv PCB uas muaj kev ntsuas zoo tshuaj ntsuas AOI yuav tsum tau sau cia los ntawm cov kev cai uas siv los khoo cov teeb meem ntawm cov khoom siv nrog qhov chaw uas lawv xav tau. Yog tias muaj qhov twg tshuav nrov lossis tsis raug ntsuas, cov rau machine yooj paub qhov teeb meem los daws nws.
Siv AI los Ntsuas thiab Tshem Tov Tombstoning hauv PCB Assembly
Kev pom tus kheej thiab kev tsis sib phim nyob rau hauv qhov kev ua PCB tau zoo dua los ntawm kev siv lub tshuas (AI) hauv cov chaw soj ntsuam. Yog li ntawd, AI cov lus qhia tuaj yeem txheej thaum nws tau ua ntau zaus thiab zoo dua kev txiav txim siab tias muaj qhov tsis zoo nrog kev zoo siab dua. AI tuaj yeem siv cov ntaub ntawv ntau heev los nrhiav qhov kev sib txawv thiab cov ntaub ntawv uas tuaj yeem hais tias muaj qhov kheej lossis tsis sib phim. Ntawd ces, aoi Inspection Machine cov chaw soj ntsuam tuaj yeem nrhiav cov khoom tsis zoo thiab tiv thaiv kev pab kom mus rau qhov chaw ua tiav.
Ntau yam teeb meem uas ua rau tsis sib phim thiab car AOI pab tiv thaiv cov qhov tsis zoo
Pob hais txog lwm yam teeb meem uas ua rau cov khoom siv hluav taws xob hla tawg, xws li kev tiv thaiv cov khoom siv hluav taws xob los ntawm cov tshuab tiv thaiv, kua nplha ib yam thaum sau hluav taws xob, thiab lwm txoj hauv xwm ntawm cov khoom siv. Kev hla tawg tuaj yeem tiv thaiv los ntawm kev siv cov tshuab AOI los so cov khoom siv rau PCB thiab saib xyuas qhov chaw thiab qhov taw qhia. Yog tias muaj teeb meem twg, cov 2D AOI Saib xyuas Equipment tshuab pom cov neeg ua haujlwm kom kho qhov chaw uas tsis raug ua ntej nws ua rau muaj ntau teeb meem dua rau hauv qab ntawm kev tsim khoom. Nws pom cov khoom hla tawg ua ntej muaj qhov loj dua rau hauv kev tsim khoom – ua ntej kom txo qhov teeb meem kom tsis txog tus neeg siv khoom.